Newly engaged Berry -- mom to Nahla, 4, with ex Gabriel Aubry -- then dissed Waknin and used Heidi Klum's stylist Maryam Malakpour on two occasions. (A rep for Berry denies any rift, insisting, "Deb and Halle have worked together on and off for years.")

As for Berry's relationship with Bullock, mom to son Louis, 2? "There's no jealousy between them," the insider tells Us. "They are friends."